Okay so I went ahead and bought a 20qt sterilite tub from Wal Mart. I tried to use binder clips to seal the middle part to prevent escape, but they didn’t fit to well. Now I’m going to try bungee cords, or traveler belts (?). Also the size of the tub can only fit one hide. Is this okay, since I don’t have a rack system? Also can anyone recommend a good price thermostat. Oh yeah.... would a UTH melt the bottom of the tub, and how well does it stick to plastic????